diff options
| author | Gennady Sharapov <Gennady.V.Sharapov@intel.com> | 2006-01-18 17:42:41 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-01-18 19:20:19 -0800 |
| commit | 4fef0c10fa174b57a10854b8b4b2b90d155706e0 (patch) | |
| tree | 02cfcc989114da9a6d46484753937cc0e3a60b52 /arch/um/os-Linux/tt.c | |
| parent | 12919aa6e015dd85170fc3b1a3e10a5dfd116c72 (diff) | |
[PATCH] uml: move libc-dependent utility procedures
The serial UML OS-abstraction layer patch (um/kernel dir).
This moves all systemcalls from user_util.c file under os-Linux dir
Signed-off-by: Gennady Sharapov <Gennady.V.Sharapov@intel.com>
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/um/os-Linux/tt.c')
| -rw-r--r-- | arch/um/os-Linux/tt.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/arch/um/os-Linux/tt.c b/arch/um/os-Linux/tt.c index cb2648b79d0..404bb63a74a 100644 --- a/arch/um/os-Linux/tt.c +++ b/arch/um/os-Linux/tt.c @@ -63,6 +63,54 @@ void kill_child_dead(int pid) } while(1); } +void stop(void) +{ + while(1) sleep(1000000); +} + +int wait_for_stop(int pid, int sig, int cont_type, void *relay) +{ + sigset_t *relay_signals = relay; + int status, ret; + + while(1){ + CATCH_EINTR(ret = waitpid(pid, &status, WUNTRACED)); + if((ret < 0) || + !WIFSTOPPED(status) || (WSTOPSIG(status) != sig)){ + if(ret < 0){ + printk("wait failed, errno = %d\n", + errno); + } + else if(WIFEXITED(status)) + printk("process %d exited with status %d\n", + pid, WEXITSTATUS(status)); + else if(WIFSIGNALED(status)) + printk("process %d exited with signal %d\n", + pid, WTERMSIG(status)); + else if((WSTOPSIG(status) == SIGVTALRM) || + (WSTOPSIG(status) == SIGALRM) || + (WSTOPSIG(status) == SIGIO) || + (WSTOPSIG(status) == SIGPROF) || + (WSTOPSIG(status) == SIGCHLD) || + (WSTOPSIG(status) == SIGWINCH) || + (WSTOPSIG(status) == SIGINT)){ + ptrace(cont_type, pid, 0, WSTOPSIG(status)); + continue; + } + else if((relay_signals != NULL) && + sigismember(relay_signals, WSTOPSIG(status))){ + ptrace(cont_type, pid, 0, WSTOPSIG(status)); + continue; + } + else printk("process %d stopped with signal %d\n", + pid, WSTOPSIG(status)); + panic("wait_for_stop failed to wait for %d to stop " + "with %d\n", pid, sig); + } + return(status); + } +} + /* *------------------------- * only for tt mode (will be deleted in future...) |